Hydraulic transmission system



Oct. 24, 1939. c. A. DE GIERS HYDRAULIC TRANSMISSION SYSTEM Filed lay 21, 1937 s Sheets-Sheet 1 INVENTOR I v J ORNEYJ l BY I 1 @114 ATT mm L Oct. 24, 1939. c. A. B5 GIERS I 7,

HYDRAULIC TRANSMISSION SYSTEM Filed lay 21, 1937 3 Sheets-Sheet 2 FIG.2. 1

a 4,4? fl p INVENTOR ATTORNEYQ' Oct. 24, 1939. c, A, DE m' 2,177,058

HYDRAULIC TRANSMISSION SYSTEM Filed May 21, 1937 3 Sheets-Sheet 3 FIG. 3. A

f 108 A ,1 J I T I! 1o INVENTOR ATTORNEYS v indicating the level of iuel oil in the tanks of a Referring to Fig. 1. In is thefloat'mounted 10 In the particular embodiment of the inventionupper free ends of sylphons 36 -and 38, respec- 90 I a the float into the enclosure to actuate the transh ll 4 form n a chamber 0 pr vi e w a Il bodiments oi the invention.

M ws 1m 2,111,058.

lml'ranjsm'ras PATENT oFFlca Clarence A. de Glens, Long Island City, N. Y., as-

signor to The Hquidorneter. Corporation, Island City, N. Y a corporation of Delaware Application m :1, 1937, Serial No. 143,950

-: Claims- (01. 73-317) This invention pertains to hydraulic transmis- Fig. 1 is a view oifian embodiment of the invension systems of the kind used in remote control tion suitable for location above a tank. indicators. Fig. 12 is a view of a tank end unit adapted to be An object of the invention is to disclose implaced withina tank.

l .provements which render such systems more Fig. 3 is a diagrammatic view of a series of I durable, more easily repaired, and generally more tank end units of the type illustrated'in'Fig. 2 satisfactory in rvic and placed one above the'other in a submarine The invention-is illustrated and described as tank and arranged to indicate the tank contents applied to the tank-end portion of apparatus for on a single indicator.

submarine. Such service is very severe and v on'arm l2 fulcrumed at II on a; bracket on the trouble has been caused by electrolytic and chemlower d o ubula Supp extending dQ ical action on the device. .This is particularly true wardly in tank- A link I! connected at when the apparatus works insalt water, espefloat arm [2 passes upwardly in tube 16 and cially if the instrument isfexposed alternately is tt d at its upp nd thr u h a su ta l to air and water or oil" and water. Although such fi ing to horizontal lever 22 pivoted at 24. The deterioration isislow, it is, nevertheless oblecother d of lever 22 iseenneeted y i 2 to tionable since it may cause too frequent overl ver 28 fulcrumed at". A-pivot Din}! 0 nhauling; and replacement ofparts. nects'lever' 28 through rod, II to "the lower and under consideration the tank-end portion of the tively, the upper and lower ends of which are i system comprises, a pair of float-controlled fixed to supporting brackets I0 and 42,-respec- Sylpho'ns arranged for actuating, hydraulically, tively'.

a remote device for indicating the amount of As floairlll moves .vertically to follow changes U liquid in the tank. 4 of levelof liquid in the, tank, the above described To largely overcome the objection as to delever system moves rod vertic lly t xp terioration, the present structure has been. de--v one Sylphon andcontract the other in order to vised, in which the delicate transmitting Syltr01 a rem te indic t r! t flo o l u phons are 'protected'in a hermetically sealed enr d through t bes l 3 8 h lph n to a closure which may, ifide'sired, be filled with fluid which the tubes are connected expand r onsuch as a good grade of light oil, the result being rac j that the Sylphons are protected from-fluids and, above mfichanism 18 PM 01! Plate th 'l p flti found therein secured by bolts 1 over an opening in tank ll..

In order to carry themechanical motion from ounted on-plate 4i and integra t r w i a mittlng Sylphons a flexible seal'in thei'orm of a over plate ill. Within cham e 1 a P a 52 third Sylphon of heavy gauge metal is used in Etta-filled t0 Shell 4 n pp r i fl P v t 24- such manner that it can breadily replaced; This o pp n mke l. 4 are attached third comparatively heavy sylphon 1s i to shell 41, and the Sylphons' are enclosed by a a for easy inspection and when it sh'owstoo much a deterioration it can readily be replaced at com- F e level n in ("umber is a disc '5 t0 pamuvely slight expense Vwi'th thisammgement which is sealed one end of a Sylphon il, itsother the comparatively delicate, light gauge, transmitend being sealed, plate sylphon flexes I when lever 22 rocks: about pivot 24 and serves as I 2:; 23 are completely isolated the a seal to prevent passage of fluid from the tank -5' and tank Pressure in through chamber is into the chamber enclosing sealing n 9*" 1* l" gauge the-transmittin Sylphons amt. Suitable packm-s e unit a be used in tank onmn' ing hermetically seals all other Joints of the ns l higher pressure then would be the Sylphon chamber, and the comparatively delicate no c e if the a e a sssylp e e ot us dtransmission Sylphons are therefore protected Further and other objects and advantages will against deterioi'ation. The 'Sylphon chamber be apparent from the specification and claims, may, it desired, be'fllled 'with'a suitable oil or and from the accompanying drawings which 11- otherv fluid through the opening normally closed lustrate' what are now considered 'preierredemby plug 80, Sylphon 5| lsespose'd to flui d from thetank. but due to-the-nature of the function t6 link 84, lever 88 and rod 88 to thewtwo transmitperformed by that Sylphon, it may be made of comparatively heavy metal and thereforejresists corrosion for a long period of time. when Sylpho'n 58 must finally be replaced it is only neces f sary.to remove cover 58 and-install a new unit comprising plate 52 with a lever 22 and Sylphon 58 attached, thus making the apparatus again as good as new, H

Fig. 2 shows an embodiment of the invention suitable for installation inside the tank in direct contact with theliquids and gases therein. In Fig. 2, 18 is thefl'oat arm pivoted on frame bracket H at 12, and connected at 14 by a vertical link 18 to horizontal lever18 pivoted at 88 on'plate 82 and operatively connected through ting Sylphons 88 and 82. Heavy Sylphon 94 functions exactly as does Sylphon 88 above described. 20

L Sylphons 88, 82, are hermetically ,sealedin a chamber iormheg by wall 98, cover plate 88, and -Sylphon 94, w I e the parts outside of that chamher are exposed to the contents of the tank.

IUD-integral with wall 95 and frame 7|. Link 16 known Fig. 3 is a section oi-a fuel tank in a sub-- marine, comprisinrthe space between the outer a d inner surfaces oi. the boat. The shapefof this ta does not permit the installation of a single I transmitting unit tor the purpose of gauging the tanks contents, and,theretore several units'are empldyed; The units illustrated are of. the typeshown in Fig. 2. The floats are arranged so that as the tank fills and each float reaches its upper extend through the temperature G to'indicator I88. 1

The device is provided with'a supporting flange is provided with suitable adjllstingflevices oi otion transmitting It -is to be understood the lnvention is not limited to the'speciflc embodiment herein illustrated and described, but may be'used in other ways without departure from its spirit as deflned by the following claims. 1

I claim: -1. In apparatus of the class described for measuring the liquid level within tanks, in combination, a float adapted for movement by change of level of liquidin a tank, a sylphon motion-transmitting unit ,within the tank intermediate the maximum and minimum liquid level, a chamber enclosing the Sylphon unit independent of the tank, means'comprising a Sylphon'for hermetically sealing said chamber and its unit irom the "tank contents, means passing thrwkh said 'Sylphon operatively interconnecting said float to said unitwhereby movement of said float controls said unit, and a remote device controlled by said, unit for indicating the level of the liquid.

\ 2. jllhe invention set forth in'claim .1 in which said first mentioned Sylphon is of lighter gauge m'etal than said second mentioned Sylphon.

3. .In apparatus of the class described for measuring the liquidlevel withig tanks, in combination, a float'adapted ior movement by change of level of liquid in a tank, a Sylphon-motion-transmitting unit within the tank. intermediate the maximum and minmumliquid let els, a chamber enclosing the Sylphon unit independent of the tank, means comprising a-sylphon ior hermetically sealing said unit within said chamber and Irom the tank. contents, means operativelyinter-aconnecting said float to said unit whereby movementof said float controls said unit, means whereby the hermetically sealed chamber may be filledwith oil to further protect said Sylphonmotion-transmitting unit, and .a remote device controlled by said unit for indicating the level of the liquid.

A. be ernns. 

